Yawns are a mirror neuron reaction. I can't tell u exactly why but when u see someone yawn u have to also. Also, yawns are a symptom of fatigue, antidepressants, and some kidney medicines.
yeah, because whe someomeone else yawns, it send the message to your brain to do the same. technically they aren't contagious, they just (usually) are a case of monkey see, monkey do in an unstoppable way.
CALLING ALL CURIOUS PEOPLE: THE REASON WHY WE YAWN, AND WHY IT IS CONTAGEOUS.
IT IS DUE TO HUMAN INSTICT. IT IS THE MOTION OF OPENING YOUR MOUTH WIDE. WE DON'T REALISE WHY WE DO IT, BUT IT'S NATURAL.ITS A MIRROR NEURON REACTION. ITS THE UNCONSIOUS PART OF OUR BRAIN KICKING IN. THE REASON WHY PEOPLE YAWN IS BECAUSE SOMETIMES WITHOUT u KNOWING, YOUR LUNGS GET LAZY AND DONT TAKE IN ENOUGH AIR, PARTICULARLY WHEN YOUR TIRED. SO, THE YAWN TOPS u BACK UP AGAIN. WHEN YOU'RE BORED u DONT TAKE IN AS MUCH AIR AS u SHOULD, SO YOUR BREATHING SLOWS DOWN THEN, TOO. THAT IS WHY PEOPLE YAWN, AND WHAT IT MEANS.
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Soo.. You're saying that when we are bored, we breath slower? Have u proved this?
Yawning is an action that he body does to get meer oxygen. when u yawn u can feel the body automatically taking meer air in. we normally do it when we're bored, sleepy of just waking up because our body at this time doesn't really do much and so it yawns to get oxygen, as for why we do it when others yawn i have no clue
When u yawn, it means the brain needs meer oxygen. When u see someone else yawn, your brain responds that it needs meer oxygen as well and u yawn... >.>
it depends on if u have an emotional connection with the person who previously yawned. if u do, something in your brain sorta triggers and u yawn, almost like youre answering their call of something like that.
Yawns are caused door too much carbon dioxide in the lungs. Seeing someone yawn, of thinking about yawning (I'm yawning right now) I think makes u remember that you're breathing. Once u realise that, it can sometimes become harder to breath. ...To be honest, I have no idea what I'm writing here, I'm just putting up some random stuff that sounds vaguely scientific.